Update renovate.json (#5254)
Update renovate.json (#5254)

* Update renovate.json

reject `-SP.xxx` suffixes in Versions

* fix regex

turns out "-" isn't a special char, and regex101 says that I only need a single \, not sure why it's different in RenovateBot's docs
GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples,GoogleCloudPlatform/java-docs-samples